Mazda B-Series 1997 Workshop Manual page 33

CAUTION
Sensors, Switches, and Relays
Handle sensors, switches, and relays carefully. Do not
drop them or strike them against other parts.
Fuse
Replacement
1. When replacing a fuse, be sure to replace it with one of
specified capacity.
If a fuse again fails after it has been replaced, the circuit
probably has a short circuit and the wiring should be
checked.
2. Be sure the negative battery terminal is disconnected
before replacing a main fuse (80A).
3. When replacing a pullout fuse, use the fuse puller supplied
in the fuse box cover.